.video-con {
    video {
        width: 100%;
    }
}
.jdtBox {
    position: relative;
    height: 5px;
    margin-top: 20px;
}
.jdtHc {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:#ccc;
}
.jdtPlayd {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: red;
}